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Maternal Iron Parameters And Diet: Influence On Infant Iron Parameters And Development, Janet Bradshaw Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine and evaluate the dietary intake of pregnant women living in this geographical area, evaluate how their diets related to their iron status, how their nutrient intakes compared with other studies, and how their iron status and diet affected infant iron status and development, as assessed by the Bayley Scale of Infant Development.

The study involved 32 pregnant women who were between 8 to 14 weeks gestation and 20 to 35 years of age. They were followed through pregnancy and their infants were followed until three months of age.

Three-day dietary records, a …

Patterns Of Singing By House Wrens With Respect To The Breeding Cycle, Michael H. Tove

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

I recorded the songs and studied the reproductive behavior of a population of marked House Wrens (Troglodytes aedon) to identify patterns of singing and correlate them with behavioral contexts and stages of the breeding cycle. I found that House Wren singing could be organized into three hierarchical regimes: routine patterns of daily singing, context-specific patterns of singing and long-term fluctuations in singing rate throughout the breeding cycle. During routine daily singing, predictable structural changes occurred. Songs were clustered in discrete groups called bouts. The songs within a bout were more similar in structure than songs from different bouts. …

Insulation Of Small Open Economies In The Presence Of External Disturbances Under Alternative Exchange Rate Systems, Hamid Reza Azad

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study analyzes the determination of the exchange rate system in a small economy when external real and monetary disturbances occur. Choice of exchange rate policy is investigated using a model assuming rational expectations and a loss function expressing the squared deviations of the small country output from desired output. The distinguishing feature of the analysis is the emphasis on real as well as monetary disturbances which originate abroad but are a source of domestic output variation. the link between foreign monetary and real disturbances and variance in output is traced using the thoretical model and the loss function assumed. …

Bioavailable Phosphorus In The Bear River System, Utah, Kenneth Warren Barker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The bioavailable fraction of phosphorus (BAP) in the lower Bear River system waters was investigated. BAP plays a critical role as the limiting nutrient for algal production and eutrophication in proposed reservoirs in the Bear River system. The Bear River system has a hardness ranging between 180-240 mg/L as CaCO₃ which significantly affects BAP.

BAP estimation was done by a modified Selenastrum capricornutum Printz Algal Assay Bottle Test. The algal bioassay is considered the best estimator of BAP because no chemical tests or indicator parameters are available. Autoclaving and UV radiation were found to be unacceptable means for sterilization …

Contemporary Engagement: Attitudes And Practices Of College Students, Stephen C. Brady

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to evaluate the attitudes and practices regarding engagement in modern America, focusing on the attitudes and evaluations of college students concerning the purpose and function of engagement. A questionairre was designed to measure the attitudes and evaluations of college students regarding engagement through the use of open-ended and Likert-type questions focusing on different aspects of the engagement process and a number of quest ions providing extensive demographic information. Respondents designated their present heterosexual relationship, allowing comparisons to be made based upon the respondents' relationship experience and exposure to the engagement process. Data were collected …

Family Satisfaction In Air Force Families As A Function Of Family Strengths, Resources And Coping Following Relocation, Mary Gyler Olsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to investigate to what extent the level of coping skills, internal resources, social support, perception and pile-up of life events affect Air Force families ' adjustments after relocation. The major objectives were threefold: (a) to assess which of the husbands' and wives' strengths and resources contributed to the family's adjustment to the stress associated with permanent change of station moves, (b) to explore whether wives' levels of coping are critical to family adjustment and (c) to determine if the types and/or levels of coping used are significantly different at two points in time after …

The Correlation Between Life Satisfaction And Farm Involvement Among Utah Dairy Farm Men And Women, Phillip S. Browning

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study is to look at the relationship between life satisfaction and farm involvement among dairy farm men and women in Utah. Farm involvement is defined as farm tasks, decision making, and participation in farm organizations. A sample of 116 couples were drawn from five counties in Utah. The husbands and wives were each interviewed separately. The sample is representative of the dairy farms in these five counties. However, the results of this study cannot be generalized to other types of farms in Utah or dairy farms from other locations.

The correlation between life satisfaction and farm …

Family Background And Personal Characteristics As Correlates Of Sexual Intercourse Experience Among Adolescent Females, C. Raymond Bingham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A sub-sample of 814 nonvirgin, adolescent females was drawn from the 1979 U.S. National Survey of Young Women in order to study the correlates of age at first sexual intercourse. This sample was analyzed using a conceptual model developed from past research, as well as some intuitively interesting associations meriting investigation.

Multiple regression procedures were used in analysis of variables by block. In the block analysis several variables were found to predict age at first sexual intercourse. These variables included all the control variables (respondent's age, race, religion, and age at menarche), household income, ideal age for first marriage, ideal …

Studies On Encephalomyocarditis Virus-Induced Diabetes In Mice, John Henry Huffman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The D-variant of encephalomyocarditis (EMC-D) virus was given to SJL/J mice by the artificial, intraperitoneal (ip) route of infection, or by the natural routes of infection per os (po) or intranasal (i.n.), in comparable concentrations. The po route of infection was found to be ineffective. Mice given virus by either the ip or i.n. routes of infection became diabetic. Mice were more resistant to the infectious and diabetogenic properties of the virus when given by the i.n. than when given by the ip route. Glycosuria in mice given virus i.n. usually lagged one day behind that in mice given virus …

Teacher-Student Writing Conferences As An Intervention In The Revision Practices Of College Freshmen, Lynn Riley Neil

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In case studies of six college freshmen of average English ability, as determined by ACT scores, the researcher explored the connections between teacher-student writing conferences and students' subsequent revisions. The following question guided this study: How does the teacher-student conference conversation relate to students' subsequent revisions? Three principles drawn from the review of literature also guided the study: 1) writing conferences can be used as a mid-composing intervention, 2) the purpose of such intervention is to guide student revision of a specific draft as well as instruct in general revision strategies, and 3) a study of student changes on drafts …

The Relationship Between Congruence Among Communication Channels And Degree Of Mental Health, Karen R. Seibel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Writers from a number of theoretical backgrounds have asserted that agreement in the emotional messages conveyed by various verbal and nonverbal communication channels is related to the communicator's psychological health. If this conjecture is accurate, then congruence among communication channels could be used as a behaviorally based assessment tool. However, empirical research to test this theoretical and clinical assumption is relatively lacking. The present study was designed to test the hypothesis that individuals who display congruence (agreement) between verbal (language), verbal/vocal (language plus paralinguistic cues, or speech) and nonverbal (facial) channels of communication will show a greater degree of mental …

Woman's Exponent: Cradle Of Literary Culture Among Early Mormon Women, Alfene Page

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper was to define and discuss the early Mormon women's newspaper, Woman's Exponent, and its editors in developing a literary culture among Mormon women. Woman's Exponent served as the primary source of research to show through its literature that the women of Utah were encouraged to express themselves freely, and present their way of life to a world that held a grossly distorted view of them. The Exponent provided the forum for skilled writers to polish their craft, and new writers to develop their talents. The literary influence of the Exponent encouraged the women writers …

Nutrient And Water Interrelationships Between Crested Wheatgrass And Two Shrub Species, Paul B. Baker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

When crested wheatgrass (Agropyron desertorum) grows in mixture with sagebrush (Artemisia tridentata), its production declines. Its production increases when grown in mixture with fourwing saltbush (Atriplex canescens), according to previous reports. This study investigated soil water extraction and potassium (K) nutrition of the two shrubs to identify possible causes of the differential responses of crested wheatgrass.

Crested wheatgrass had reduced, rather than increased, nitrogen (N) and K yield in mixture with fourwing saltbush. No differences in N and phosphorous (P) concentrations were observed between sagebrush and fourwing saltbush, but fourwing saltbush had a much …

The Effects Of Participation In A Development Group Upon The Psychological Adjustment Of Pregnant Adolescents And Adolescent Mothers, Bernard E. Wazlavek

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Pregnant adolescents and adolescent mothers are a population at risk to a variety of negative social, economic, and psychological consequences. Numerous group interventions have been designed to improve the psychological adjustment of pregnant adolescents and adolescent mothers. However, there has been a paucity of research evaluating the efficacy of these interventions. This research was designed to evaluate the efficacy of the development group intervention. The primary objective of this research was to evaluate the effects of this intervention upon the psychological adjustment of the participants.

Thirty-two subjects (16 experimental and 16 comparison) enrolled in two alternative public high schools in …

The Emotional Effects Of Injury On Female Collegiate Gymnasts, Nancy J. Albert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to examine affective changes which result from injury in female collegiate gymnasts, using the Profile of Mood States (POMS) instrument (McNair, Lorr, & Droppleman, 1971 ).

Twelve female gymnasts, comprising the Utah State University gymnastics team, completed the POMS twice per month for four months during their 1986-87 competitive season . A comparison group of 12 non-athlete female college students, matched with the gymnasts by age, year in school, and major, completed the POMS on the same schedule as the gymnasts. Injury was defined as orthopedic damage to the gymnast's body as a result …

Comparison Of Post-Weaning Performance And Carcass Traits Of Columbia And Cormo Crossbred Lambs, Carl Kim Chapman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Thirty-seven Columbia and Cormo Crossbred July-weaned weather lambs were utilized in this study. A feeding trial was conducted to evaluate feed efficiency, average daily gain, feed cost per pound of gain, wool growth per day and per pound of grain, and average wool fiber diameter and distribution of fiber population of the wool. Lambs were raised to a uniform market weight of between 115 and 125 pounds and slaughtered to evaluate carcass weight, backfat thickness, loin eye area, internal body fat, leg circumference, dressing percentage, untrimmed wholesale cuts, trimmed retail cuts, and yield and quality grades. Suffok x Cormo/Rambouillet lambs …

Maternal, Obstetric, And Neonatal Correlates Of Short-Term Neurodevelopmental Outcome In Newborn Infants With Intraventricular Hemorrhage, Richard Elghammer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The attempt to identify risk factors or correlates of intraventricular hemorrhage (IVH) has been constrained by conflicting research findings, changing hypotheses about the etiology of IVH, and by the exceedingly complex nature of this neurological disorder. In addition, few studies have investigated the possibility that antenatal factors might predispose the infant to IVH. Thus, research aimed at identifying IVH correlates from all time periods in which stress could occur to the neonate needs to be undertaken. This study was conducted for the purpose of identifying and quantifying correlates of IVH by constructing an interactive statistical model to predict the occurrence, …

Determinants Of The Components Of A State's Tourist Image And Their Marketing Implications, Zafar Uddin Ahmed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A state's image as perceived by its actual and potential tourists plays a significant role in determining its competitiveness as a tourist destination. A state's image influences a tourist's vacation destination decisions. A tourist's image of a given state is influenced by numerous factors including his amount of touring experience within that state, geographical affiliation, demographic profile, vacation characteristics, and the amount and source of tourist information used.

Utah was used as a case study to test the viability of the proposed research model. A mail questionnaire requested information concerning 1) attributes of Utah's tourist image considered when choosing a …

The Effects Of A Social Skills Training Program On Constructive Conflict Resolution Techniques In Parent-Adolescent Dyads, Thomas A. Mills

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The primary purpose of this thesis was to assess the effects of a short verses long-term social skills training program on (a) enhancing adolescent and parent social skills, while Cb) reducing conflict and distress and enhancing warmth and cohesion. A modified pretest - posttest control group design was employed wherein the control group for the first experiment became a portion of the experimental group for the second experiment. The sample consisted of ~3 parent-adolescent dyads who volunteered to participate. Of those, 25 met the minimum criteria for being included in the analysis, 18 dyads from the experimental group and 7 …

Messages To Homemakers As Consumers Regarding Food Preparation As Conveyed By Women's Magazines 1947-1986, Carmen Dobson Steggell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to define the messages related to food preparation that are conveyed by women's magazines to homemakers as consumers during the post-World War II period, and to analyze any changes of those messages over time. A content analysis of food related articles and advertisements in representative issues of Ladies' Home Journal and Good Housekeeping magazines from 1947 to 1986 was conducted. Both manifest and latent content were coded and agreement between the two measures was analyzed.

Of eighteen messages defined, five were found to account for 78.9 percent of the messages conveyed,. The five messages, …

Journalistic Codes Of Ethics: A Proposed Standard For Juries In Libel Trials, Michael H. Eldridge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The standard of judgment for determining fault in tort law as applied to libel is ambiguous. Juries are allowed to rule against media defendants by using a standard that does not consider professional journalistic practice. I argue that the determination of professional fault is beyond the understanding of a lay jury due to the unique professional practice of journalists. Juries find it far easier to empathize with private party plaintiffs than with media defendants. I abstract criteria from standards of conduct for the journalism profession and determine what the reasonable journalist might do in general practice. In conclusion, I offer …

Multiphoton Ionization Followed By Time-Of-Flight Mass Spectroscopy Of Sputtered Neutrals, M. J. Pellin, C. E. Young, D. M. Gruen

Scanning Microscopy

Multiphoton ionization (MPI) by pulsed, tunable lasers provides a sensitive means for detection of neutral atoms, resulting from the high probability achievable in both the ionization and subsequent detection steps. Substantial selectivity is achieved by excitation between energy levels of the atom of interest. This resonant MPI technique can access all atomic states including ground and metastable levels.

The high efficiency of MPI technique permits detailed sputtering data to be obtained with minimal target damage. The goal is to obtain velocity and angular distributions for each energy level of every sputtered species. In practice, two types of experimental configurations have …

Proton Microprobe And Particle Induced X-Ray Emission (Pixe) Analysis For Studies Of Pathological Brain Tissue, K. G. Malmqvist, A. Brun, K. Inamura, E. Martins, L. G. Salford, B. K. Siesjö, U. A. S. Tapper, K. Themner

Scanning Microscopy

Particle Indiced X-ray Emission and proton microprobe analyses have been applied for the investigation of regional elemental distributions in connection with various pathological states in the brain. Malignant brain tumours and adjacent histologically intact tissue removed during surgery were analysed with PIXE. Systematic elemental variations, e.g., for calcium and selenium, were observed in the tumour front. The proton microprobe was applied to study the Ca and K concentrations in various cell strata in hippocampus following transient ischaemia in rat brain. Significant increases in the Ca level occurred in selectively vulnerable cells within 48 h after the ischaemia.

Insites, Spring 1988, Utah State University

inSites

Magazine of the Department of Landscape Architecture and Environmental Planning

The Capabilities Of The Microprobe Kontron Image Analysis System: Application To Mineral Beneficiation, W. Petruk

Scanning Microscopy

Image analysis is a technique for determining quantities, grain size distributions, grain orientations, intergrowths, associations, liberations and degrees of alteration of minerals or phases in naturally occurring and processed materials. It is performed by analysing images of polished or thin sections of the material under study. To obtain accurate results the images must be faithful reproductions of the material, and each mineral or phase displayed in the images must be distinct enough to be automatically discriminated and identified without operator interaction. An image analysis system that meets these requirements was developed in the Process Mineralogy Section at CANMET by interfacing …

Biomedical Applications Of Proton Induced X-Ray Emission, R. D. Vis

Scanning Microscopy

Apart from studies on aerosols, the majority of applications of proton induced X-ray emission (PIXE) with a normal beam or a microprobe (micro-PIXE) is found in biology and medicine. Two aspects of broad beam PIXE are often decisive for the choice of this analytical technique. Compared to other techniques capable of analysis down beyond the ppm level, PIXE can be carried out with a very small amount of material and minute fractions of the composite samples, even in the scale of micrometers and quite often with minimal sample preparation, which are important requirements for biomedical investigations. Secondly, the speed of …

Constrained Optimization Design Of An Ion Focusing System With Wide Range Of Energy Adjustment, Chang-Xin Gu, Li-Ying Shan, Ming Lu

Scanning Microscopy

For the study of ion scattering from solid surface, it is required that the energy of ions can be adjusted widely. The constrained optimization design of an ion focusing system with wide energy range and the magnification less than unity using the improved complex method is proposed in the present paper. This ion focusing system is suitable for use in the low energy ion scattering spectroscopy (ISS) and secondary ion mass spectroscopy (SIMS).

A Physical Theory Of The Living State: Application To Water And Solute Distribution, G. N. Ling

Scanning Microscopy

This review begins with a summary of the disproof of the membrane-pump theory and the alternative theory of the living cell, the association-induction (AI) hypothesis. Being alive in the AI hypothesis represents the maintenance of a high (negative) energy-low entropy state in which the two major components K⁺ and water of the living cell are closely associated with the third major component of the living cells, proteins. K⁺ is adsorbed singly on 𝜷-and γ-carboxyl groups and the bulk of cell water in multilayers on the exposed NHCO groups of fully extended polypeptide chains of cell proteins. These adsorptions …

The Vascularization Of The Peripheral Nerve Of Chicken And Rat, M. A. Konerding, M. Lehmann, M. Blank

Scanning Microscopy

The vascular system of the sciatic nerve of chicken and rats was examined by means of the microcorrosion casting technique and freeze-broken specimens.

The main epineural vessels form two lateral and interfascicular vascular bundles which anastomose with one another and also with the peri -and endoneural plexuses. On epi- and perineural vessels one can find morphological correlates for regulative means such as sphincters. Even the endoneural vessels depict numerous anastomoses.

The proximity of the vessels as well as the great number of anastomoses suggests a considerable compensatory potential with an adaptable perfusion rate in case of a partial breakdown of …

Elemental Microanalysis Of Biological Specimens, Godfried M. Roomans, Joanna Wroblewski, Romuald Wróblewski

Scanning Microscopy

Although X-ray microanalysis in the electron microscope is the most common method for microanalysis of biological specimens, other methods of elemental microanalysis (electron energy loss spectroscopy, scanning Auger microanalysis, and proton, ion, and laser microprobe analysis) may provide important complementary information and help overcome some of the limitations of electron probe X-ray microanalysis. Despite differences in physical principles and instrumentation, the various microanalytical methods have much in common with regard to specimen preparation, quantitative analysis, and interpretation of analytical data. A common approach to microanalytical problems in the biological sciences, irrespective of the analytical techniques used, seems therefore indicated.